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This section describes how to install the SQL Server HA package. Run the following commands to install the Server HA package:
sudo apt-get install mssql-server-ha
sudo systemctl restart mssql-server
After installing the HA package on all the SQL Server nodes, SQL Server must be restarted before it can be used. These instructions assume that the Microsoft package repositories have already been configured, as SQL Server should be installed currently.
The hadr.hadrenabled option enables availability groups on your SQL Server instance. Edit the mssql.conf file to enable availability groups by setting hadr.hadrenabled to 1.
For more information, see Install the SQL Server HA and SQL Server Agent package.